Cognomen Rongger (Rongger) , globally, is an extremely rare last name.
冗杰, 容杰, 嵘杰, 戎杰, 榕杰, 榮杰, 溶杰, 熔杰, 绒杰, 肜杰, 茸杰, 荣杰, 蓉杰, 融杰, 鎔杰, and 镕杰
